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| 型号： | LTC1516CS8#PBF |
| 厂商： | Linear Technology |
| 文件页数： | 1/8页 |
| 文件大小： | 0K |
| 描述： | IC REG SWITCHED CAP DBL 5V 8SOIC |
| 标准包装： | 100 |
| 类型： | 切换式电容器（充电泵），倍增器 |
| 输出类型： | 固定 |
| 输出数： | 1 |
| 输出电压： | 5V |
| 输入电压： | 2 V ~ 5 V |
| 频率 - 开关： | 600kHz |
| 电流 - 输出： | 50mA |
| 同步整流器： | 无 |
| 工作温度： | 0°C ~ 70°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 8-SOIC（0.154"，3.90mm 宽） |
| 包装： | 管件 |
| 供应商设备封装： | 8-SOIC |
| 产品目录页面： | 1339 (CN2011-ZH PDF) |
LTC1516
Micropower, Regulated
5V Charge Pump
DC/DC Converter
FEATURES
DESCRIPTIO N
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Ultralow Power: Typical Operating I CC = 12 μ A
Short Circuit/Thermal Protection
Regulated 5V ± 4% Output
2V to 5V Input Range
No Inductors
I CC in Shutdown: < 1 μ A
Output Current: 20mA (V IN > 2V)
50mA (V IN > 3V)
Shutdown Disconnects Load from V IN
Internal Oscillator: 600kHz
Compact Application Circuit (0.1 in 2 )
8-Pin SO Package
The LTC ? 1516 is a micropower charge pump DC/DC
converter that produces a regulated 5V output from a 2V
to 5V supply. Extremely low supply current (12 μ A typical
with no load, < 1 μ A in shutdown) and low external parts
count (two 0.22 μ F flying capacitors and two 10 μ F capaci-
tors at V IN and V OUT ) make the LTC1516 ideally suited for
small, light load battery-powered applications. Typical
efficiency (V IN = 3V) exceeds 70% with load currents
between 50 μ A and 50mA. Modulating the SHDN pin keeps
the typical efficiency above 70% with load currents all the
way down to 10 μ A.
The LTC1516 operates as either a doubler or a tripler
APPLICATIO N S
depending on V IN and output load conditions to improve
overall efficiency. The part has thermal shutdown and can
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2-Cell to 5V Conversion
Li-Ion Battery Backup Supplies
Local 3V to 5V Conversion
5V Flash Memory Programmer
Smart Card Readers
survive a continuous short from V OUT to GND. In shut-
down the load is disconnected from V IN .
The LTC1516 is available in an 8-pin SO package in both
commercial and industrial temperature grades.
, LTC and LT are registered trademarks of Linear Technology Corporation.
TYPICAL APPLICATIO N
0.22 μ F
90
Efficiency vs Output Current
V IN = 3V
1
C1 +
C1 –
8
80
V IN = 2V TO 5V
+
10 μ F
+
2
3
10 μ F 4
V IN
V OUT
C2 +
SHDN
LTC1516
GND
C2 –
7
6
5
ON/OFF
70
LOW I Q MODE
(SEE FIGURE 3)
SHDN = 0V
0.22 μ F
60
V OUT = 5V ± 4%
I OUT = 0mA TO 20mA, V IN ≥ 2V
I OUT = 0mA TO 50mA, V IN ≥ 3V
1516 ? F01
50
0.01
0.1 1 10
OUTPUT CURRENT (mA)
100
1516 ? TA01
Figure 1. Regulated 5V Output from a 2V to 5V Input
1
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| LTC1516IS8 | 功能描述:IC REG SWITCHED CAP DBL 5V 8SOIC RoHS:否 类别:集成电路 (IC) >> PMIC - 稳压器 - DC DC 开关稳压器 系列:- 标准包装:2,500 系列:- 类型:降压（降压） 输出类型:固定 输出数:1 输出电压:1.2V，1.5V，1.8V，2.5V 输入电压:2.7 V ~ 20 V PWM 型:- 频率 - 开关:- 电流 - 输出:50mA 同步整流器:是 工作温度:-40°C ~ 125°C 安装类型:表面贴装 封装/外壳:10-TFSOP，10-MSOP（0.118"，3.00mm 宽）裸露焊盘 包装:带卷 (TR) 供应商设备封装:10-MSOP 裸露焊盘 |
| LTC1516IS8#PBF | 功能描述:IC REG SWITCHED CAP DBL 5V 8SOIC RoHS:是 类别:集成电路 (IC) >> PMIC - 稳压器 - DC DC 开关稳压器 系列:- 标准包装:2,500 系列:- 类型:降压（降压） 输出类型:固定 输出数:1 输出电压:1.2V，1.5V，1.8V，2.5V 输入电压:2.7 V ~ 20 V PWM 型:- 频率 - 开关:- 电流 - 输出:50mA 同步整流器:是 工作温度:-40°C ~ 125°C 安装类型:表面贴装 封装/外壳:10-TFSOP，10-MSOP（0.118"，3.00mm 宽）裸露焊盘 包装:带卷 (TR) 供应商设备封装:10-MSOP 裸露焊盘 |
| LTC1516IS8#TR | 功能描述:IC REG SWITCHED CAP DBL 5V 8SOIC RoHS:否 类别:集成电路 (IC) >> PMIC - 稳压器 - DC DC 开关稳压器 系列:- 标准包装:2,500 系列:- 类型:降压（降压） 输出类型:固定 输出数:1 输出电压:1.2V，1.5V，1.8V，2.5V 输入电压:2.7 V ~ 20 V PWM 型:- 频率 - 开关:- 电流 - 输出:50mA 同步整流器:是 工作温度:-40°C ~ 125°C 安装类型:表面贴装 封装/外壳:10-TFSOP，10-MSOP（0.118"，3.00mm 宽）裸露焊盘 包装:带卷 (TR) 供应商设备封装:10-MSOP 裸露焊盘 |
| LTC1516IS8#TRPBF | 功能描述:IC REG SWITCHED CAP DBL 5V 8SOIC RoHS:是 类别:集成电路 (IC) >> PMIC - 稳压器 - DC DC 开关稳压器 系列:- 标准包装:2,500 系列:- 类型:降压（降压） 输出类型:固定 输出数:1 输出电压:1.2V，1.5V，1.8V，2.5V 输入电压:2.7 V ~ 20 V PWM 型:- 频率 - 开关:- 电流 - 输出:50mA 同步整流器:是 工作温度:-40°C ~ 125°C 安装类型:表面贴装 封装/外壳:10-TFSOP，10-MSOP（0.118"，3.00mm 宽）裸露焊盘 包装:带卷 (TR) 供应商设备封装:10-MSOP 裸露焊盘 |
| LTC1517CS5-3.3 | 制造商:Linear Technology 功能描述:Charge Pump STPUP 3.3V 15mA 5-Pin TSOT-23 |
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